ast-grep Kit¶

AST-based code search, lint, and rewrite via ast-grep (sg).

Activation: Opt-in — only active if explicitly enabled in your config.

What's Included¶

sg — CLI for searching, linting, and rewriting code using abstract syntax tree patterns

Configuration¶

kits:
  ast-grep: {}

Dependencies¶

Depends on the Node.js kit (installed via npm).

Usage¶

# Search for a pattern
sg run --pattern 'console.log($ARG)' --lang js

# Lint with rules
sg scan

# Rewrite matches
sg rewrite --pattern 'console.log($ARG)' --rewrite 'logger.info($ARG)' --lang js

Patterns use $VAR as wildcards to match any AST node. See the ast-grep documentation for full pattern syntax.